Tempire vs Diagonal Duel
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Tempire
Experience a unique blend of chess and real-time strategy. Compete against friends or AI in fast-paced matches. This game offers an ad-free, free-to-play experience.
- Chess variation
- Real-time action
- Online multiplayer
- AI opponent
- Ad-free gameplay
- Free to play
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Tempire is a variation on chess that brings tense real-time action to the classic turn-based board game. Play online with friends or against challenging AI, all for free and without ads. Tempire was made by Greg March and Matthew Jee, with music by Jacob Rhein.
Diagonal Duel
Engage in a strategic board game similar to Connect Four, but with a unique 45-degree rotated board. Challenge a computer opponent, play with a friend on the same device, or compete in online ranked matches.
- 45-degree rotated board gameplay
- Play against AI (levels 0-100)
- Local two-player mode
- Online ranked matches
- Similar to Connect Four
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Diagonal Duel against a level 0-100 computer, with two players on the same device, or in ranked online games! Diagonal Two Squared is a game similar to Connect Four but essentially with the board rotated at 45 degrees. This allows for play on two "sides" from the start instead of the original game, on which you only play only along the bottom. The app allows for two players to play on the same device, to select a level from 0 to 100 computer to play against, or to play against random opponents.
Screenshots
Verdict
The clearest difference is ads: Tempire at none against Diagonal Duel's shown. Tempire also leads on rating (5.0 vs 4.8) and monetization model (free vs ad-supported). Diagonal Duel's advantage is update cadence (every 2 weeks vs every 23 months) and ratings volume (20 vs 2). On price, in-app purchases, device support and iOS requirement there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Tempire holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: Diagonal Duel has 20 ratings behind it against 2, so its average is the more settled of the two.
Tempire ships an update every 23 months, Diagonal Duel every 2 weeks. The most recent releases landed on October 3, 2026 and October 13, 2026 respectively.
| Parameter | Tempire | Diagonal Duel |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) — better | 4.8 (20 ratings) |
| Positive reviews | — | 85.7% of reviews |
| Number of ratings | 2 | 20 — better |
| Update frequency | Every 23 months | Every 2 weeks — better |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Monetization | Free — better | Ad-supported |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 — better | 15.1 |
| Further details — not scored | ||
| Size | 13 MB | 21 MB |
| Age rating | 4+ | 4+ |
| Developer | Matthew Jee | Brian Savidge |
Customer experience
Tempire
Diagonal Duel
In-app purchases
Tempire
No in-app purchases
Diagonal Duel
No in-app purchases
